Artifacts from Neolithic Age book an early settlement of the region. Still today rests of Hill forts, in Arancedo as well as in the neighbouring Coaña and Mohias are visible. In the 18th century the old gold mines which are in use until today were found near the embankment castle of Arancedo. During the Middle Ages El Franco was split in the dioceses by Lugo and Oviedo, the administrative capital was in this time, Castropol. In 1852 the administrative seat was laid to El Franco finally in the Parroquia La Caridad where it is still today.
At the top of the employees lies the Livestock and Fishery. The milk industry is provided here still with the highest growth, after in the fishing the preventive measures of the EU started to reach. The tourism industry and administrative companies form the second largest position of the employers and the tourism shows the biggest growth of the region. Smaller, commercial companies and production companies are found predominantly in the small industrial parks of the adjoining municipality.